During steel production a considerable amount of slags is produced. In addition to its usual processing, as recycling
in device for steel production and preparation of aggregates, it is also possible to apply less common slag processing
ways. Depending on cooling mode of the steel slags these may show some binding properties. Geopolymer
type binders can be prepared from the slag using alkali activators or the hydraulic properties of the dicalciumsilicate
present in the slag can be induced by water. The paper summarizes present state of material utilisation of the steel
slags with focus on emphasize of the possible sources of the slag volume instability. The infl uence of process of slag
cooling on its phase composition is documented. It was also found that slags from real sources show diff erent parameters
compared to samples obtained for laboratory examination.Web of Science52333332